Recombinant Porcine IL-2 (Cys146Ala) Protein
R&D Systems, part of Bio-Techne | Catalog # 1015-P2
Key Product Details
Product Specifications
Source
E. coli-derived porcine IL-2 protein
Ala21-Thr154 (Cys146Ala), with an N-terminal Met
Ala21-Thr154 (Cys146Ala), with an N-terminal Met
Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
N-terminal Sequence Analysis
Met
Predicted Molecular Mass
15.3 kDa
Activity
Measured in a cell proliferation assay using CTLL-2 mouse cytotoxic T cells. Gearing, A.J.H. and C.B. Bird (1987) in Lymphokines and Interferons, A Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 295.
The ED50 for this effect is 0.05-0.25 ng/mL.
The ED50 for this effect is 0.05-0.25 ng/mL.
Formulation, Preparation and Storage
Carrier Free
What does CF mean?CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
What formulation is right for me?In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
Carrier: 1015-P2
| Formulation | Lyophilized from a 0.2 μm filtered solution in Sodium Acetate with BSA as a carrier protein. |
| Reconstitution | Reconstitute at 10 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Carrier Free: 1015-P2/CF
| Formulation | Lyophilized from a 0.2 μm filtered solution in Sodium Acetate. |
| Reconstitution | Reconstitute at 100 μg/mL in sterile PBS. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Background: IL-2
Interleukin 2 was initially identified as a T cell growth factor that is produced by T cells following activation by mitogens or antigens. Since then, it has been shown that in addition to its T cell growth factor activity, IL-2 can also stimulate the growth and differentiation of B cells, natural killer (NK) cells, lymphocyte activated killer (LAK) cells, monocytes/macrophages and oligodendrocytes. At the amino acid sequence level, there is approximately 72% similarity between mature porcine and human IL-2.
The biological activity of IL-2 is mediated by the binding of IL-2 to cell surface receptor complexes. The functional high-affinity receptor of IL-2 is composed of three distinct polypeptide chains, the IL-2 receptor alpha, beta and gamma subunits. The intermediate-affinity IL-2 receptor complex, which lacks the alpha subunit, but contains both the beta and gamma subunits, is also capable of transducing the IL-2 signal. In T cells, the beta and gamma subunits are shared with the IL-15 receptor complex. The gamma chain of the IL-2 receptor complex has also been shown to be a subunit of the receptor complexes of IL-4, IL-7, and IL-9.
References
- Taniguchi, T. and Y. Minami (1993) Cell 73:5.
- Waldmann, T. et al. (1998) Int. Rev. Immunol. 16:205.
- Nelson, B.H. and D.M. Willeford (1998) Adv. Immunol. 70:1.
Long Name
Interleukin 2
Alternate Names
Aldesleukin, IL2, Proleukin, TCGF
Entrez Gene IDs
Gene Symbol
IL2
UniProt
Additional IL-2 Products
Product Documents for Recombinant Porcine IL-2 (Cys146Ala) Protein
Product Specific Notices for Recombinant Porcine IL-2 (Cys146Ala) Protein
For research use only
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